SN74HC4066DT

Overview

The SN74HC4066DT is a high-speed CMOS quad bilateral switch manufactured by Texas Instruments. It features four independent SPST switches in a 14-pin SOIC package. The device operates on a single supply voltage ranging from 2 V to 6 V. Key electrical parameters include a maximum propagation delay of 15 ns at 5 V, an off-state leakage current of 1 µA, and an on-resistance of 25 Ω. It supports a continuous current of 50 mA per switch and functions within a temperature range of -40°C to +85°C.

Feature Summary

• High-speed switching capability with low propagation delay for efficient signal routing
• Quad configuration providing four independent bilateral analog switches
• Wide operating voltage range compatible with standard logic families

Applications

• Signal multiplexing and demultiplexing in data acquisition systems
• Audio and video signal path switching
• Programmable gain amplifier input selection

Procurement Notes

Verify the specific suffix 'DT' corresponds to the tape-and-reel packaging format rather than tube packaging when sourcing. Confirm RoHS compliance status and moisture sensitivity level requirements for surface-mount assembly processes prior to procurement.

Selection Notes

Select this component for applications requiring low on-resistance and wide bandwidth. Ensure the design accounts for the 2 V to 6 V supply range. Compare against SN74HCT4066 if TTL-compatible logic levels are required instead of standard CMOS inputs.

Part Context

This part belongs to the SN74HC series of high-speed CMOS logic devices. It serves as a functional equivalent to other industry-standard quad analog switches but is optimized for Texas Instruments' manufacturing processes and reliability standards.

Replacement Considerations

SN74HC4066DR: Same manufacturer, different reel size. SN74HC4066D: Tube packaged version. SN74HC4066PW: TSSOP package alternative.